Spinning, twisting, and winding machine.



No 650,703. Patented May 29', I900. R. DAWES.

SPINNING, TWISTING, AND WINDING MACHINE.

(Application filed Apr. 24, 1899.)

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Patented May 29. I900. R. DAWES..

'SPINNING, TWISTING, AND WINDING MACHINE.

(Application filed Am. 24, 1899.)

2 Sheets$heet 2 (No Model.)

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Enron.

ROBERT DAWES, OF PHILADELPHIA,

PENNSYLVANIA, AssIeNoR .OF Two- THIRDS TO EDMUND DAWES, OF SAME PLACE, AND EDWARD H. HAS- KELL, OF NEWTON, MASSACHUSETTS.

SPINNING, TWISTING, A uofwmome MACHINE.

SPEGIFICATION forming part of Letters Patent No. 650,708, dated May 29, 1900,

Application filed April 24, 1899.

To, all whom, it may concern:

Be it known that I, ROBERT DAWES, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Spinning, Twisting, and Winding Machines, of which the following is a specification.

The object of my invention is to so construct a twisting, spinning, or winding ma- [0 chine as to provide for the frictional control of the spool or bobbin from which a strand or cord is being unwound or upon which it is being wound and to do so without the use of the objectionable friction pad bearing di- I rectly upon the cord or strand, which is sometimes used. This object I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which Figure 1 is a View, partly in side elevation and partly in longitudinal section, of sufficient of a spinning or twisting machine to illustrate my invention, the mechanism illustrated being that which effects the unwinding of a cord or strand from a spool. Fig. 2

2 5 is a side view of a pulley forming part of said machine. Fig. 3 is a View, partly in side elevation and partly in longitudinal section, illustrating the application of my invention to mechanism having for its purpose the wind- 0 ing of a cord or strand upon a spool or bobbin; and Fig. 4 is a side elevation of part of said mechanism.

In Fig. 1 of the drawings, 1 represents a hollow spindle mounted in suitable bearings 5 in standards or supports. 2 and having a grooved pulley 3, which receives a drivingbelt 4 from a pulley 5 on the driving-shaft 6. The pulleys 3 and 5 are of similar construction, each consisting of a hub 7, having a web with a forwardly-projecting and externallythreaded annular flange 8 and an outwardlyprojecting flaring or beveled flange 9. To the externally-threaded annular flange 8 is adapt-- ed the internally-threaded hub 10 of a flange 11, which is flared or inclined in a direction the reverse of the flange 9, said hub 10 and flange 11 being split and provided with lugs 12, through which passes a bolt 13, having a nut 14, so that after the hub has been screwed upon the annularflange 8 until it has reached Serial No. 714,252. (No model.)

its desired position it may be securely clamped in position on said flange by tightening the nut 14. A pulley of this character has a V groove for the reception of the driving-belt, which V groove can be readily expanded or contracted, so as to cause the belt to seat therein at a point nearer to or farther from the axis of the pulley, as desired, separation of the flanges 9 and 11 permitting the belt to approach the axis,- the approach of these flanges causing the belt to find its seat at a point farther from the axis. The effective diameter of either of the pulleys can thus be readily varied and the speed of rotation of the spindle 1 correspondingly changed as desired, suitable means of course being provided for lengthening or shortening the belt when the changes in the diameter of the pulleys are such as to require the same. To the spindle 1 is secured a cross-head 15, which carries projecting hollow arms 16, each of said arms having a guide-pulley 17, as shown in Fig. 1. To the inner end of the spindle 1 is secured a plug 18, which constitutes the in ner bearing for a spindle 19, upon which the spool or bobbin 20 is mounted, the outer end of said spindle 19 beingadapted toa bearing in a standard 21 and being retained in position longitudinally by means of a plate 22, which has a forked end engaging with a groove in the spindle 19 in the usual manner.

Loosely mounted on the inner end of the spindle 1 is a bobbin-driving disk 23, which bears against a shoulder formed by a flange or collar on the plug 18, a friction-ring 24, of leather or other available material, being pressed against this disk 23 by a disk 25,

' which has a slotted hub 26, acted upon by a coiled spring 27, interposed between the end of said hub and a nut 28, the latter being adapted to an externally-threaded portion of the spindle 1, so that it can be adjusted on said spindle to vary the tension of the spring 27, and consequently the pressure exerted upon the hub 26. A pin 29, carried by the hub 26, passes through slots 30 in the opposite sides of the spindle 1, and this pin carries a guide-pulley 31, located centrally in the spindle, so that the cord or strand no can be drawn from the bobbin 20 through one of the hollow flier-arms 16 around the pulley 17 of the same, thence around the pulley 31, and thence through the hollow spindle 1 to the spinning, twisting, or winding machine in connection with which the mechanism is employed. So long as the cord or strand m is not subjected to more than normal tension the parts remain in the position shown in Fig. 1, the unwinding of the spool or bobbin being controlled by the frictional braking device comprising the disks 23 and 25, interposed friction-rin g 24, and spring 27. If, however, there should be any sudden increase in draft upon the strand 0c, the pulley 31 will be drawn toward the outer end of the hollow spindle 1, and this will have the effect of drawing back the friction-disk 25, so as to release the bobbin 20 from the frictional control normally exerted upon it, thereby permitting such free delivery of the strand from said bobbin as to immediately relieve it from any extrastrain, whereupon the disk will be immediately restored by the spring 27 to contact with the friction-ring 24 and normal conditions of operation will be resumed.

In applying my invention to a winding device the object is to exercise a uniform tension upon the spool or bobbin upon which the cord or strand is being wound, and the mechanism employed in this case will be understood on reference to Figs. 3 and 4, in which 1 represents the hollow spindle, turning in bearings in suitable supports 2 and having a pulley 3, which receives a driving-belt 4, the spindle having a cross-head 15, carrying flier-arms 16, which are supported at their outer ends by a second cross-head 15", the latter turning upon the spindle 9, upon which the bobbin 20 is mounted and which is supported by a standard 21 and retained by a slide-plate 22", as in the construction shown in Fig. 1. In connection with the flier-arms 16 is employed a longitudinally-reciproeating traverse-ring 32, having a suitable guide for the strand :0, which is to be wound upon the bobbin 20,said traverse-ring being moved to and fro by any of the devices ordinarily employed for the purpose. Within the hollow spindle 1 is another hollow spindle 33, which has an adjustable pulley 34 for receiving a driving-belt 35 from a differential driving-pulley of the character shown in Fig. 1, whereby the speed of rotation of said hollow spindle 33 can be varied as desired. The inner end of the hollow spindle 33 has an external spur-wheel 36, meshing with the spur-pinions 37 on a pair of draft drums or capstans 38, which are mounted so as to turn freely upon spindles 39, carried by the crosshead 15 and by a second cross-head 40, the latter being carried by a short tubular shaft 41, which forms, in effect, a continuation of the spindle 1. The draft drums or eapstans 38 have other pinions 42, which mesh with a spur-wheel 43, forming part of a short sleeve 44, free to turn in the tubular shaft 41, and having at its inner end clutch-teeth 45, which engage with similar clutch-teeth 46 upon the hub 26 of a friction-disk 25 Fig. 4, said hub 26 being likewise free to turn in the hollow shaft 41. Passing through the hub 26, sleeve 44, and spur-wheel 43 is the hollow hub 47 of a frictional bobbin-disk 23, which has a projecting pin 50 in engagement with a suitable socket on the head of the bobbin 20, the hub 47 carrying a block 18, which constitutes the bearing for the inner end of the bobbin-supporting spindle 9. The friction-disk 25 is acted upon by a coiled spring 27, whereby it is pressed against the friction-ring 24 and presses the latter against the disk 23, an adjustable nut 28 serving to vary the tension of the spring. As the flier is rotated the arm which is delivering the strand or cord to the bobbin pulls the latter around with it; but the frictional drag upon the bobbin causes the cord or strand to be wound upon the latter as fast as it is delivered by the flicrarm, the tension being uniform from the beginning to the end of the wind and being represented by the difference between the speed of rotation of the flier and the speed of delivery of the cord or strand to the bobbin, for it will be noted that the friction-disk 25 is rotated from the draft-drums 38. Hence the degree of slip of the disk 23 and the friction resulting therefrom are equal to the diiference in the speed of rotation of said disk 23, which is connected to the bobbin, and hence represents the flier speed, and that of the disk 25, which is connected to the draft-eapstans, and hence represents the draft speed. This is substantially areversal of the arrangement shown in Fig. 1, in which the disk 23 represents the'draft speed and the disk 25 the flier speed.

The use of the clutch-teeth 45 46 permits longitudinal movement of the disk 25, so that the latter can follow up the disk 24 as the latter becomes worn.

It will be observed from the foregoing description that in both cases the devices connected to the movable friction-disk and engaged by the cord or strand are controlled by the tension on said cord or strand, so as to vary the friction between the two disks in the desired manner.

Having thus described my invention, I

claim and desire to secure by Letters Patent-'- 1 1. In a tension device for spools or bobbins of spinning, twisting or winding apparatus, the combination of a spool or bobbin support, and a flier, with a friction-disk provided with means whereby it can be connected to the spool or bobbin, another friction-disk in contact with that of the spool or bobbin, and devices connected to the latter disk and engaged by the cord or strand in its passage, and controlled by the tension thereof to vary the friction between the two disks, substantially as specified.

2. In a tension device for spools or bobbins -of spinning, twisting or winding apparatus,

the combination of a support for the spool or bobbin, a flier, a friction-disk provided with means whereby it can be connected to the spool 0r bobbin, a second friction-disk, a spring whereby the latter is pressed into frictional contact with that of the spool or bobbin, and devices connected to said second disk and engaged by the cord or strand in its passage, and controlled by the tension thereof to vary the friction between the two disks, substantially as specified.

3. In a tension device for spools or bobbins, of spinning, twisting or winding apparatus, the combination of a support for the spool or bobbin, a flier, a friction-disk provided with means whereby it may be connected to the spool or bobbin, a second friction-disk, means for pressing the same into frictional contact with the first disk, draft-drums engaged by the cord or strand in its passage, and means whereby said draft-drumsare caused to control the action of said second friction-disk, substantially as specified.

4. In a tension device for spools or bobbins of spinning, twisting or winding apparatus, the combination of a spool or bobbin support, a flier, a friction-disk provided with means whereby it may be connected to the spool 0r bobbin, a second friction disk, means for maintaining the same in frictional contact with the first disk, draft-drums engaged by the cord or strand in its passage, and gearing whereby said second disk is driven by said draft-drums, one of the elements of said gearing being a toothed clutch whereby the disk can be moved to take up wear, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT DAWES.

Witnesses:

J os. H. KLEIN, F. E. BEoHToLn. 

